Give a ballpark estimate of the number of seats in a typical major league ballpark

Give a ballpark estimate of the number of seats in a typical major league ballpark.
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Shea Stadium, in New York. How many fans can it hold? (Problem)

Answer:

A typical major league ballpark has a capacity to seat about 10,000 people. Thus, the number of seats in the ballpark must be 10,000.
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